|Publication number||US5458583 A|
|Application number||US 08/289,841|
|Publication date||17 Oct 1995|
|Filing date||12 Jun 1994|
|Priority date||7 Jan 1993|
|Also published as||CA2151259A1, CA2151259C, DE69427901D1, DE69427901T2, EP0683684A1, EP0683684A4, EP0683684B1, WO1994015655A2, WO1994015655A3|
|Publication number||08289841, 289841, US 5458583 A, US 5458583A, US-A-5458583, US5458583 A, US5458583A|
|Inventors||Gwyn F. McNeely, Christine Decaria, Stephen Parks|
|Original Assignee||Medical Innovations Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (30), Non-Patent Citations (2), Referenced by (182), Classifications (16), Legal Events (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application is a continuation of U.S. application Ser. No. 08/001,271, filed Jan. 7, 1993 and now abandoned, for GASTROSTOMY CATHETER SYSTEM.
This invention generally relates to enteric feeding tubes and particularly to enteric feeding tubes which are inserted into the interior of a patient's stomach through the patient's abdominal and stomach walls.
There are a number of patient's who are unable to chew or swallow for relatively long periods of time. Examples of such patient's include those who are neurologically impaired, e.g. stroke, those who have had traumatic injury to their head or neck areas. e.g. a broken jaw, and those who have an obstruction in their esophagus, e.g. cancer. In these instances, it is common practice to insert an enteric feeding tube, sometimes called a gastrostomy tube or catheter, through the patient's abdominal and gastric walls into the interior of the patient's stomach in order to feed the patient nutrients, medicaments and the like through the gastrostomy tube until such time of the patient can chew and swallow on his or her own.
There are several well known techniques for inserting a gastrostomy tube into a patient's stomach for enteral feeding and medication. One of such techniques involves making an opening in portions of the stomach wall and the abdominal wall and passing the gastrostomy tube through the opening until its distal end is well disposed within the patient's stomach. Very frequently in this technique the stomach wall is secured to the abdominal wall by means of a plurality of T-fasteners. The opening in the abdominal and stomach walls may be formed by means of a Seldinger technique wherein a relatively large needle is inserted through the walls into the stomach, a guidewire or a peel-away introducer sheath, such as shown in U.S. Pat. No. 4,166,469 is inserted through the needle forming the opening and then the needle is removed. The opening is usually enlarged to allow for the passage of the gastrostomy tube by advancing a series of dilators of increasing diameters through the opening.
However, it is not uncommon to experience some difficulty in advancing the dilators and a gastrostomy tube through the opening formed in the patient's abdominal and stomach walls. If the stomach wall is secured to the abdominal wall by T-fasteners, sometimes the forces applied to the stomach wall by the advancing dilators or gastrostomy tube are sufficiently high to cause the stomach wall to tear away from the T-fasteners which secure the stomach wall to the abdominal wall. If the stomach wall is not secured to the abdominal wall, the stomach wall tends to be pushed away by the dilators. i.e. forming a tent-like indentation in the stomach wall.
What has been needed is a system which can easily advance a gastrostomy tube through the patient's abdominal wall and stomach wall so that the distal end thereof is properly disposed within the patient's stomach without damage to the patient's stomach wall. These and other needs are satisfied by the present invention.
This invention is directed to a catheter system for placing a gastrostomy catheter into the interior of a patient's stomach through the secured walls of the patient's stomach and abdomen.
The system of the invention includes a dilatation catheter having an elongated catheter shaft with an expandable dilatation member, e.g. an inflatable balloon on a distal section of the catheter shaft. If an inflatable member is provided, the catheter has an inflation lumen which is in fluid communication with the inflatable member. An adapter is provided on the proximal end of the catheter shaft which is adapted to direct inflation fluid from a source to the inflation lumen in the catheter shaft. The dilatation catheter has an outer diameter which is small enough to be slidable within an inner lumen of a gastrostomy catheter and it is long enough so that the proximal end of the dilatation catheter extends out of the proximal end of the gastrostomy catheter while the dilatation balloon on the distal section of the dilatation catheter extends completely out of the distal end of the gastrostomy catheter. The adapter on the proximal end of the dilatation catheter is preferably removable to allow the gastrostomy catheter to be more easily loaded onto the proximal end of the dilatation catheter. The dilatation catheter may be provided with a guidewire lumen which extends to a guidewire port in the distal end of the catheter to facilitate guiding the catheter through over a guidewire the passageway formed in the abdominal and gastric walls to be dilated.
The balloon of the dilatation catheter is formed of a polymer material which inflates to a desired diameter but which does not expand significantly beyond that the desired diameter for dilatating a passageway for the gastrostomy catheter, even when the inflation pressure is increased significantly beyond the pressure which expands the balloon to the desired diameter, i.e. the balloon is relatively inelastic or noncompliant at the elevated pressures. Suitable balloon materials include inelastic polymers such as polyethylene, polyethylene terephthalate, polyvinyl chloride and polyolephinic ionomers such as Surlyn®.
The gastrostomy catheter generally has a catheter shaft with a first lumen extending from the proximal end to the distal end of the catheter shaft which is adapted to direct fluids from the proximal end of the catheter, out the port in the distal end into the interior of the patient's stomach. The gastrostomy catheter is also provided with an internal retention means which prevents the removal of the catheter through the passageway extending through the abdominal and gastric walls. Preferable, the internal retention means is an expandable member such as a balloon or a mechanical device as described in U.S Pat. No. 4,666,433 and U.S. Pat. No. 5,073,166, which are incorporated herein by reference. Both of these patents have been assigned to the present assignee Medical Innovations Corp. of Milpitas, Calif. With a catheter having an inflatable member, a second lumen extends within the catheter shaft from the proximal end of the gastrostomy catheter to the interior of the balloon to provide fluid for the latter's inflation after the distal extremity of the gastrostomy catheter is properly disposed within the patient's stomach.
Presently preferred embodiments of the gastrostomy catheter are described in U.S. Pat. No. 4,685.592, U.S. Pat. No. 4,701,163 and U.S. Pat. No. 4,798,592, which are incorporated herein by reference thereto. As described in these patents, the balloon on the distal section of the gastrostomy catheter is inflated while it is disposed within the interior of the stomach and then the catheter is tugged to pull the inflated balloon against the interior of the stomach wall. An exterior retention ring, which is frictionally mounted onto the shaft of the gastrostomy catheter, is then urged along the catheter shaft until it presses against the exterior surface of the abdominal wall to ensure that the gastrostomy catheter is secured and can not move distally.
The dilatation catheter, which is adapted to be disposed within the fluid delivery lumen of the gastrostomy catheter, is advanced into the passageway formed through the abdominal and stomach walls until the dilatation balloon extends along the entire length of the passageway and, once properly positioned within the passageway, the balloon is inflated to dilate the passageway. The dilatation is preferably performed under fluoroscopic observation. During the initial stage of the balloon inflation, a portion of the dilatation balloon within the passageway, particularly within the fascia of the abdominal wall does not expand completely, thus forming a waist which is readily seen fluoroscopically if the balloon is inflated with radiopaque fluid. The inflation pressure within the dilatation balloon is increased until the diameter of the inflated balloon is essentially the same along its length, i.e. the waist disappears. More than one inflation may be required for complete dilatation. After the dilatation balloon is deflated, the gastrostomy catheter may be advanced over the dilatation catheter until the distal end of the gastrostomy catheter is disposed well within the interior of the patient's stomach. Preferably, the gastrostomy catheter is mounted over the proximal end of the dilatation catheter onto the shaft thereof before the dilatation catheter is inserted into the passageway in the abdominal wall and the gastric wall so that when the passageway is dilated, the dilatation balloon can be deflated and the gastrostomy catheter immediately advanced thereover.
Once the distal end of the gastrostomy is disposed well within the interior of the stomach, the dilatation catheter may then be removed. To secure the distal end of the gastrostomy catheter the balloon on the distal end of the gastrostomy catheter within the stomach is inflated and the catheter withdrawn through the passageway in the abdominal and stomach walls until the inflated balloon is urged snugly against the interior of the stomach wall. A sealing ring which is frictionally mounted on the shaft of the gastrostomy catheter is then advanced distally on the shaft until it is pressed against the exterior of the abdominal wall. This procedure seals the passageway.
The present invention provides a catheter system which facilitates the placement of a gastrostomy catheter within a patient's stomach. The inflation of the dilatation balloon on the dilatation catheter applies essentially only radial pressure against the passageway through the patient's abdominal and stomach walls to expand the passageway sufficiently to allow for the passage therethrough of a gastrostomy tube. However, the expansion of the passageway and the passage of the gastrostomy catheter therethrough applies little or no shear forces to the stomach wall which can cause damage, e.g. tearing the stomach lining away from T-fasteners which secure the stomach wall to the abdominal wall. These and other advantages of the invention will become more apparent from the following detailed description of the invention, when taken in conjunction with the accompanying exemplary drawings.
FIG. 1 is an elevational view, partially in section, of a gastrostomy catheter disposed through a passageway in a patient's abdominal and stomach walls.
FIG. 2 is a transverse cross-sectional view of the catheter shown in FIG. 1 taken along the lines 2--2.
FIG. 3 is an elevational view of a dilatation catheter which embodies features of the present invention.
FIG. 4 is a transverse cross-sectional view of the dilatation catheter shown in FIG. 3 taken along the lines 4--4.
FIG. 5 is an enlarged cross-sectional view of a distal portion of the catheter shown in FIG. 3.
FIG. 6 is an elevational view of an assembly with the dilatation catheter shown in FIG. 3 disposed within an inner lumen of a gastrostomy catheter such as illustrated in FIG. 1.
FIGS. 7-9 illustrate the insertion of the catheter assembly shown in FIG. 5 into a patient's stomach.
FIGS. 1 and 2 depict a gastrostomy catheter 10 extending through a patient's abdominal wall 11 and stomach wall 12. The gastrostomy catheter 10 has an elongated catheter shaft 13 with an internal retention member, inflatable balloon 14 on a distal portion thereof, an external retention ring 15 fictionally mounted onto the exterior of the shaft 13 and a multiarm adapter 16 on the proximal end of the catheter shaft. As shown, the balloon 14 is inflated and the catheter 10 is withdrawn through the passageway 17 until the balloon is urged against the inside of the stomach wall 12. The external retention ring 15 is advanced over the shaft 13 and is pressed against the exterior of the patient's abdominal wall 11 to secure the gastrostomy catheter within the abdominal and stomach walls. The abdominal wall 11 and the stomach wall 12 are secured together at several locations by means of T-fasteners 18 which are disposed within the interior of the stomach. Sutures 19, which are secured by one end to each of the T-fasteners, pass through the abdominal and gastric-walls 11 and 12, a padded retention element, such as a cotton pledget 20 shown, and a nylon washer or button 21 disposed on the exterior of the abdominal wall 11. The sutures 19 may be knotted several times or crimps (not shown) may be employed to secure the buttons 21 against each of the pledgets 20 with sufficient pressure to hold the stomach against the wall of the abdomen.
The multiarm adapter 16 has an arm 22 which is adapted to receive nutrients and the like in fluid form from a source such as a syringe (not shown) and deliver such fluids through an inner lumen 23 within the catheter shaft 13 and out a port 24 in the distal end thereof to the interior of the patient's stomach. Arm 25 is adapted to receive medication in fluid form and deliver the fluids through the lumen 26 to a port 27 in the distal end of the catheter shaft 13. Alternatively, lumens 23 and 26 may be a single lumen. Arm 28 is adapted to receive an inflation device (not shown) and is in fluid communication with the balloon 14 through lumen 29.
The gastrostomy catheter 10 is inserted through the passageway 17 in abdominal and stomach walls 11 and 12 with the aid of a dilatation catheter 30 as shown in FIGS. 7-9.
The dilatation catheter 30, as best shown in FIGS. 3-5, has an elongated shaft 31, a dilatation balloon 32 on a distal section thereof and a removable multiarm adapter 33, which is secured to the proximal end of the catheter shaft 31. The catheter shaft 31 has an inflation lumen 34 which extends therein from the proximal end of the catheter shaft to the interior of the balloon 32 and a guidewire receiving lumen 35 which extends from the proximal end to the distal end of the catheter shaft. The balloon member 32 is preferably formed of material which allows the balloon to be inflated to a desired size but which does not exhibit significant expansion beyond the desired size upon increased pressures e.g. it is relatively inelastic or noncompliant at its inflated diameter.
FIG. 6 illustrates an assembly of the gastrostomy catheter 10 and the dilatation catheter 30 ready for insertion through passageway 17, with the dilatation catheter disposed within an inner lumen 23 of the gastrostomy catheter. To form the assembly the inner lumen 23 of the gastrostomy catheter 10 is lubricated with a suitable sterile lubricant, e.g. mineral oil, and then the proximal end of the dilatation catheter 30, with the adapter 33 removed, is inserted into the inner lumen 23 of the gastrostomy catheter through its distal end and advanced therein until the proximal end of the dilatation catheter extends out the arm 22 of the gastrostomy catheter. The dilatation balloon 30 should extend completely out of the port 24 in the distal end of the gastrostomy catheter 10 to ensure the complete inflation thereof. The adapter 33 may then be mounted onto the proximal end of the catheter shaft 31 and secured thereto by tightening collar 37.
To prepare the site on the patient's abdomen for insertion of the gastrostomy catheter 10, the patient's stomach is filled with air to displace the overlying bowel gas and the site is selected fluoroscopically to avoid the patient's liver, small bowel and colon. The three or four sites for T-fastener placement are marked on the exterior of the abdomen about the region chosen for gastrostomy catheter placement in the shape of an equilateral triangle (for three T-fastener sites) or a square (for four T-fastener sites). After prepping and draping, the skin, subcutaneous tissues and peritoneal lining are liberally anesthetized with a 1% procaine (Xylocaine®) and a nick is made through the skin at each of the T-fastener sites.
An introducer needle (e.g. 17 gage) preloaded with a T-fastener 18 is advanced through the anterior abdominal wall 11 through the nicks at a T-fastener site and then given a rapid thrust of 2-5 cm to ensure that the introducer needle passes completely through the gastric wall 12 and into the gastric lumen. The gastric wall tends to form an inwardly projecting tent-like structure when the distal end of the needle is pressed against the exterior thereof without penetration, but by providing a quick thrust, the sharp distal tip of the needle easily passes through the gastric wall. Air is aspirated with a syringe attached to the introducer needle to confirm that the distal tip of the needle is within the interior of the stomach. The syringe is removed from the needle and a rod is passed through the needle from its proximal end to push T-fastener 18 disposed within the needle lumen into the interior of the stomach. The suture 19 attached to the T-fastener extends out of the abdominal wall 11. The introducer needle is then removed and the suture secured to the T-fastener is withdraw., pulling the anterior gastric wall and omentum snugly against the anterior abdominal wall. The pledget 20 and the button 21, through which the suture 19 is threaded, are slid along the suture and urged against the abdominal surface and then the suture 19 is tied in several knots (5 or more is preferred) to hold the button 21 against the pledget 20 with sufficient pressure to hold the T-fastener 18 snugly but not tightly against the stomach wall 12 as shown in FIG. 1. A suitable T-fastener system is the Brown-Mueller T-fastener set available from Medi-tech (Boston Scientific Corp of Watertown, Mass.). Other suitable systems are commercially available.
The site for inserting the gastrostomy catheter 10 into the patient's stomach is prepared in essentially the same manner as the sites for inserting the T-fasteners 18. The skin, the subcutaneous tissues and the peritoneum are liberally anesthetized with a 1% procaine and then a small incision, e.g. 10-12 mm in length, is made parallel to the major branches of the superior epigastric arteries. An introducer needle (e.g. 18 gage puncture needle) is advanced through the center of the incision into the interior of the stomach and a syringe is attached to the needle to aspirate air to ensure proper placement within the interior of the stomach. A suitable guidewire 36 (e.g. a 0.038" J-tip guidewire) is passed through the lumen of the needle into the interior of the stomach and allowed to loop liberally within the stomach to protect against accidental dislodgement of the guidewire. The introducer needle is then withdrawn from the abdominal and gastric walls 11 and 12 and the passageway or track 17 formed in the abdominal and stomach walls by the introducer needle is predilated by passing a plurality of catheter type dilators, e.g. first an 8 french catheter and then a 12 french catheter, over the in-place guidewire 36 to facilitate the advancement of the dilatation catheter 30 through the track 17.
The gastrostomy catheter 10 is preloaded onto the shaft 31 of the dilatation catheter 30 by removing the adapter 33 on the dilatation catheter and advancing the gastrostomy catheter over the dilatation catheter (or vice versa) until the dilatation balloon 32 extends completely out of the distal end of the gastrostomy catheter and then the assembled catheters are advanced over the in-place guidewire 36 until the balloon 32 on the dilatation catheter 30 extends through the passageway 17 across both the abdominal wall 11 and the stomach wall 12. The adapter 33 is remounted onto the proximal end of the dilatation catheter 30 and then by passing the shaft 31 into the distal end of the adapter and tightening the cap 32 onto the distal of the adapter (see FIG. 31 dilatation balloon 32 is inflated to dilatation pressures (e.g. 12-15 atm.) to dilate the track 17 sufficiently to allow the gastrostomy catheter 10 to pass easily through the passageway without applying stress to the stomach wall which might tear the wall away from the T-fastener 18. The balloon 32 is preferably inflated with radiopaque liquid so that the expansion of the balloon can be monitored fluoroscopically. In the initial stages of the dilatation as shown in FIG. 7, the portion of the balloon 32 within the fascia of the abdominal wall does not expand as much as the rest of the tissue through which the balloon extends and it forms a waist 37 which is readily observed fluoroscopically. The balloon 32 is inflated one or more times to its dilatation diameter within the passageway 17 until the waist 37 disappears as shown in FIG. 8. It is important that the passageway 17 be properly dilated so that there is no excessive force applied to the stomach wall when pushing of the gastrostomy catheter 10 through the passageway which might cause the T-fasteners to tear through the wall of the stomach. For gastrostomy and other types of catheters within the size range of about 14-30 French, the passageway 17 should be expanded to at least about 1 cm to ensure minimum forces on the stomach wall 12.
After the dilatation of the passageway 17 is complete, the balloon 32 on the dilatation catheter 30 is deflated and the gastrostomy catheter 10 is advanced over the dilatation catheter 30 as shown in FIG. 9 until the balloon 14 on the gastrostomy catheter is well within the interior of the stomach. The balloon 14 is inflated to the desired size and then the gastrostomy catheter 10 is withdrawn through the passageway 17 until the inflated balloon 14 is pulled snugly against the stomach wall 12. The dilatation catheter 30 and the guidewire 36 are removed after confirming that the balloon 14 is properly positioned within the stomach. The external retention ring 15 on the shaft 13 of the catheter 10 is pushed against the exterior of the abdominal wall 11 as depicted in FIG. 1 to effectively secure the gastrostomy 10 within the stomach. Care must be exercised to avoid excessive pressure by the external retention means, i.e. balloon 14, against the gastric wall 12, because high pressure over a long term can cause tissue necrosis. After the gastrostomy catheter 10 has been in place for about 10-14 days there is relatively sound bond between the abdominal and stomach walls 11 and 12, so the sutures 19 connected to the T-fasteners 18 may be severed at the exterior of the abdominal wall 11 releasing the T-fasteners 18 into the stomach. The released fasteners 18 ultimately pass harmlessly through the gastrointestinal system of the patient.
The dilatation catheter 30 typically has an overall length of about 12 to about 40 inches/30.4-102 cm) and a shaft diameter of about 3-8 French (1-2.6 mm) to facilitate passages through inner lumen 23 of gastrostomy catheter 10. The balloon has an inflated diameter of about 5 to about 15 mm and a length of about 1 to about 15 cm, preferably about 8-12 cm. The dimensions of the dilatation catheter depend to a large extent upon the dimensions of the gastrostomy catheter to be used. The overall length of the dilatation catheter 30 must be great enough so that proximal end extends out the proximal end of the gastrostomy catheter and the balloon 32 extends completely out the distal end of the gastrostomy catheter.
The gastrostomy catheter 10 and the dilatation catheter 30 can be conveniently packaged together as a kit with the catheters either separate from one another or with the dilatation catheter 30 slidably disposed within the inner lumen 23 of the gastrostomy catheter as shown in FIG. 6. Ideally, the assembly of the gastrostomy catheter 10 and the dilatation catheter 30 are ready for mounting on a guidewire. Additional items which may be included in the kit include a guidewire, T-fasteners with attached sutures, suitable pledgets and buttons, an inflation device such as syringe, an introducer needle and the like. Other items used in the procedure of inserting and fixing the gastrostomy catheter 10 may also be included in the kit such as a vial of anesthetic, e.g. 1% procaine and a needle and syringe to use the anesthetic.
While the invention has been described herein primarily in terms of catheters adapted for stomach access, the enteric gastrostomy catheters may also provide jejunal access such as with the MIC Gastro-Enteric Tube and the MIC Jejunal Tube which are available from the assignee of the present application, Medical Innovations Corporation of Milpitas, Calif. Various modifications can be made to the invention without departing from the scope thereof. For example, the catheter shaft of the gastrostomy catheter is depicted in FIG. 2 as extruded or other wise formed into a unitary mass. However, the shaft can be formed from individual tubular elements which have been heat fused together. Other modifications and improvements to the invention will be apparent to those skilled in the art.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US4057065 *||21 Jun 1976||8 Nov 1977||Dow Corning Corporation||Percutaneous gastrointestinal tube|
|US4453545 *||29 Apr 1982||12 Jun 1984||Hiroshi Inoue||Endotracheal tube with movable endobronchial blocker for one-lung anesthesia|
|US4666433 *||22 Oct 1985||19 May 1987||Medical Innovations Corporation||Gastrostomy feeding device|
|US4701163 *||5 Nov 1984||20 Oct 1987||Medical Innovations Corporation||Gastrostomy feeding device|
|US4705401 *||12 Aug 1985||10 Nov 1987||Cyberware Laboratory Inc.||Rapid three-dimensional surface digitizer|
|US4758219 *||17 May 1985||19 Jul 1988||Microvasive, Inc.||Enteral feeding device|
|US4798592 *||13 Oct 1987||17 Jan 1989||Medical Innovations Corporation||Gastrostomy feeding device|
|US4819664 *||17 Feb 1988||11 Apr 1989||Stefano Nazari||Device for selective bronchial intubation and separate lung ventilation, particularly during anesthesia, intensive therapy and reanimation|
|US4832028 *||27 Feb 1987||23 May 1989||Patel Piyush V||Catheter assembly and method of performing percutaneous transluminal coronary angioplasty|
|US4846174 *||13 Nov 1987||11 Jul 1989||Scimed Life Systems, Inc.||Angioplasty dilating guide wire|
|US4863438 *||29 Nov 1985||5 Sep 1989||Applied Medical Technology, Inc.||Low profile gastrostomy device|
|US4867742 *||7 Aug 1987||19 Sep 1989||Reynaldo Calderon||Retrograde perfusion|
|US4911163 *||16 Jun 1987||27 Mar 1990||Ernesto Fina||Two ballooned catheter device for diagnostic and operative use|
|US4944732 *||15 Aug 1988||31 Jul 1990||Sandoz Nutrition Corporation||Gastrostomy feeding port|
|US4981482 *||10 May 1989||1 Jan 1991||Kazuo Ichikawa||Device for forming an inserting hole for an endoscope|
|US5007900 *||31 Oct 1989||16 Apr 1991||Applied Medical Technology, Inc.||Percutaneous endoscopic gastrostomy device|
|US5059178 *||18 Jan 1991||22 Oct 1991||Ya Wang D||Method of percutaneously removing a thrombus from a blood vessel by using catheters and system for removing a thrombus from a blood vessel by using catheters|
|US5071405 *||2 Jun 1989||10 Dec 1991||Abbott Laboratories||Gastrostomy tube|
|US5073166 *||15 Feb 1989||17 Dec 1991||Medical Innovations Corporation||Method and apparatus for emplacement of a gastrostomy catheter|
|US5074846 *||13 Sep 1990||24 Dec 1991||Abbott Laboratories||Stoma creator gastrostomy device and method for placement of a feeding tube|
|US5080650 *||28 Jan 1991||14 Jan 1992||Abbott Laboratories||Gastrostomy tube|
|US5084014 *||13 Dec 1990||28 Jan 1992||Applied Medical Technology, Inc.||Package for initial placement of low profile gastrostomy device and method of placement|
|US5102390 *||2 May 1985||7 Apr 1992||C. R. Bard, Inc.||Microdilatation probe and system for performing angioplasty in highly stenosed blood vessels|
|US5112310 *||6 Feb 1991||12 May 1992||Grobe James L||Apparatus and methods for percutaneous endoscopic gastrostomy|
|US5123914 *||19 May 1986||23 Jun 1992||Cook Incorporated||Visceral anchor for visceral wall mobilization|
|US5151086 *||22 Oct 1991||29 Sep 1992||The Regents Of The University Of California||Laparoscopic tube placement method|
|US5158543 *||30 Oct 1990||27 Oct 1992||Lazarus Harrison M||Laparoscopic surgical system and method|
|US5167627 *||17 May 1991||1 Dec 1992||Abbott Laboratories||Stoma creator gastrostomy device and method for placement of a feeding tube|
|US5180367 *||16 Sep 1991||19 Jan 1993||Datascope Corporation||Procedure and balloon catheter system for relieving arterial or veinal restrictions without exchanging balloon catheters|
|US5234454 *||5 Aug 1991||10 Aug 1993||Akron City Hospital||Percutaneous intragastric balloon catheter and method for controlling body weight therewith|
|1||*||Medi tech, Incorporated, Instructions For Use TractMaster Balloon Dilatation Catheters, Rev. Jul. 1985.|
|2||Medi-tech, Incorporated, "Instructions For Use TractMaster™ Balloon Dilatation Catheters," Rev. Jul. 1985.|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US5919163||14 Jul 1997||6 Jul 1999||Delcath Systems, Inc.||Catheter with slidable balloon|
|US6030361 *||25 Jan 1999||29 Feb 2000||Miyashiro; Augusto M.||Gastrostomy apparatus|
|US6186146||13 Jan 1997||13 Feb 2001||Delcath Systems Inc||Cancer treatment method|
|US6290672 *||30 Jul 1997||18 Sep 2001||Mick Abae||Exploratory tubular sonogenic catheter|
|US6315789||8 Feb 1999||13 Nov 2001||Andrew H. Cragg||Medical device anchoring system and method|
|US6328720||18 Feb 2000||11 Dec 2001||Zevex, Inc.||Low-profile enterostomy device|
|US6582395 *||14 Dec 2000||24 Jun 2003||J & R Medical Devices, Inc.||Feeding tube device and method|
|US6679870 *||7 Jul 2000||20 Jan 2004||Vasca, Inc.||Methods and kits for locking and disinfecting implanted catheters|
|US6685694 *||16 May 2001||3 Feb 2004||Vasca, Inc.||Methods and kits for locking and disinfecting implanted catheters|
|US6808521||13 Sep 2000||26 Oct 2004||Kimberly-Clark Worldwide, Inc.||Enteral feeding adapter|
|US6902541||10 Dec 2001||7 Jun 2005||Zevex, Inc.||Low-profile enterostomy device|
|US7041083 *||26 Feb 2002||9 May 2006||Scimed Life Systems, Inc.||Medical catheter assembly including a removable inner sleeve and method of using the same|
|US7124489||30 Nov 2002||24 Oct 2006||Kimberly-Clark Worldwide, Inc.||Process for producing a catheter|
|US7410477 *||21 Dec 2004||12 Aug 2008||Gomez Matthew A||Supra pubic catheter|
|US7452347 *||28 Mar 2005||18 Nov 2008||Hammerhead Design And Development, Inc.||Gastric access port|
|US7492116||3 Apr 2007||17 Feb 2009||Board Of Regents Of The University Of Nebraska||Robot for surgical applications|
|US7534224||30 Nov 2002||19 May 2009||Kimberly-Clark Worldwide, Inc.||Catheter with unitary component|
|US7582072||9 Sep 2004||1 Sep 2009||Kimberly-Clark Worldwide, Inc.||Artificial stoma and method of use|
|US7611502||20 Oct 2005||3 Nov 2009||Covidien Ag||Connector for enteral fluid delivery set|
|US7628775||24 Sep 2004||8 Dec 2009||Boston Scientific Scimed, Inc.||Safety Y-port adaptor and medical catheter assembly including the same|
|US7655004||15 Feb 2007||2 Feb 2010||Ethicon Endo-Surgery, Inc.||Electroporation ablation apparatus, system, and method|
|US7682346||30 Jun 2004||23 Mar 2010||Zevex, Inc.||Low-profile enterostomy device|
|US7721742 *||23 Mar 2001||25 May 2010||Johns Hopkins University||Methods for diagnostic and therapeutic interventions in the peritoneal cavity|
|US7772796||29 Nov 2007||10 Aug 2010||Board Of Regents Of The University Of Nebraska||Robotic devices with agent delivery components and related methods|
|US7815662||8 Mar 2007||19 Oct 2010||Ethicon Endo-Surgery, Inc.||Surgical suture anchors and deployment device|
|US7819840 *||6 Jun 2006||26 Oct 2010||C. R. Bard, Inc.||Feeding device including balloon tip and method of manufacture|
|US7896859||17 Nov 2006||1 Mar 2011||Tyco Healthcare Group Lp||Enteral feeding set|
|US7960935||16 Jun 2010||14 Jun 2011||The Board Of Regents Of The University Of Nebraska||Robotic devices with agent delivery components and related methods|
|US7963941 *||22 Mar 2006||21 Jun 2011||Wilk Peter J||Intra-abdominal medical method and associated device|
|US7976518||13 Jan 2005||12 Jul 2011||Corpak Medsystems, Inc.||Tubing assembly and signal generator placement control device and method for use with catheter guidance systems|
|US8029504||10 Dec 2009||4 Oct 2011||Ethicon Endo-Surgery, Inc.||Electroporation ablation apparatus, system, and method|
|US8037591||2 Feb 2009||18 Oct 2011||Ethicon Endo-Surgery, Inc.||Surgical scissors|
|US8043260||17 Nov 2008||25 Oct 2011||Delegge Medical, Inc.||Gastric access port|
|US8057429 *||26 Feb 2009||15 Nov 2011||Nath Iyunni Venkata Sesha Sayi||Feeding tube|
|US8066689||11 Jul 2007||29 Nov 2011||Apollo Endosurgery, Inc.||Methods and systems for submucosal implantation of a device for diagnosis and treatment with a therapeutic agent|
|US8070759||30 May 2008||6 Dec 2011||Ethicon Endo-Surgery, Inc.||Surgical fastening device|
|US8075572||26 Apr 2007||13 Dec 2011||Ethicon Endo-Surgery, Inc.||Surgical suturing apparatus|
|US8100922||27 Apr 2007||24 Jan 2012||Ethicon Endo-Surgery, Inc.||Curved needle suturing tool|
|US8114072||30 May 2008||14 Feb 2012||Ethicon Endo-Surgery, Inc.||Electrical ablation device|
|US8114119||9 Sep 2008||14 Feb 2012||Ethicon Endo-Surgery, Inc.||Surgical grasping device|
|US8128592||11 Jul 2007||6 Mar 2012||Apollo Endosurgery, Inc.||Methods and systems for performing submucosal medical procedures|
|US8142467||21 Apr 2008||27 Mar 2012||Applied Medical Resources Corporation||Tamponade trocar device and method|
|US8157834||25 Nov 2008||17 Apr 2012||Ethicon Endo-Surgery, Inc.||Rotational coupling device for surgical instrument with flexible actuators|
|US8172772||11 Dec 2008||8 May 2012||Ethicon Endo-Surgery, Inc.||Specimen retrieval device|
|US8206347||12 Oct 2010||26 Jun 2012||C. R. Bard, Inc.||Feeding device including balloon tip and method of manufacture|
|US8211125||15 Aug 2008||3 Jul 2012||Ethicon Endo-Surgery, Inc.||Sterile appliance delivery device for endoscopic procedures|
|US8241204||29 Aug 2008||14 Aug 2012||Ethicon Endo-Surgery, Inc.||Articulating end cap|
|US8241252 *||8 May 2006||14 Aug 2012||Boston Scientific Scimed, Inc.||Medical catheter assembly including a removable inner sleeve and method of using the same|
|US8252057||30 Jan 2009||28 Aug 2012||Ethicon Endo-Surgery, Inc.||Surgical access device|
|US8262563||14 Jul 2008||11 Sep 2012||Ethicon Endo-Surgery, Inc.||Endoscopic translumenal articulatable steerable overtube|
|US8262655||21 Nov 2007||11 Sep 2012||Ethicon Endo-Surgery, Inc.||Bipolar forceps|
|US8262680||10 Mar 2008||11 Sep 2012||Ethicon Endo-Surgery, Inc.||Anastomotic device|
|US8317771||15 Jan 2010||27 Nov 2012||Apollo Endosurgery, Inc.||Methods and systems for performing submucosal medical procedures|
|US8317806||30 May 2008||27 Nov 2012||Ethicon Endo-Surgery, Inc.||Endoscopic suturing tension controlling and indication devices|
|US8337394||1 Oct 2008||25 Dec 2012||Ethicon Endo-Surgery, Inc.||Overtube with expandable tip|
|US8343171||11 Jul 2008||1 Jan 2013||Board Of Regents Of The University Of Nebraska||Methods and systems of actuation in robotic devices|
|US8353487||17 Dec 2009||15 Jan 2013||Ethicon Endo-Surgery, Inc.||User interface support devices for endoscopic surgical instruments|
|US8357136||5 Oct 2010||22 Jan 2013||Covidien Lp||Enteral feeding set|
|US8361066||12 Jan 2009||29 Jan 2013||Ethicon Endo-Surgery, Inc.||Electrical ablation devices|
|US8361112||27 Jun 2008||29 Jan 2013||Ethicon Endo-Surgery, Inc.||Surgical suture arrangement|
|US8403926||5 Jun 2008||26 Mar 2013||Ethicon Endo-Surgery, Inc.||Manually articulating devices|
|US8409200||3 Sep 2008||2 Apr 2013||Ethicon Endo-Surgery, Inc.||Surgical grasping device|
|US8425505||25 Aug 2011||23 Apr 2013||Ethicon Endo-Surgery, Inc.||Electroporation ablation apparatus, system, and method|
|US8449538||27 Jan 2010||28 May 2013||Ethicon Endo-Surgery, Inc.||Electroporation ablation apparatus, system, and method|
|US8480657||31 Oct 2007||9 Jul 2013||Ethicon Endo-Surgery, Inc.||Detachable distal overtube section and methods for forming a sealable opening in the wall of an organ|
|US8480689||2 Sep 2008||9 Jul 2013||Ethicon Endo-Surgery, Inc.||Suturing device|
|US8491472||23 Nov 2011||23 Jul 2013||Apollo Endosurgery, Inc.||Methods and systems for submucosal implantation of a device for diagnosis and treatment with a therapeutic agent|
|US8496574||17 Dec 2009||30 Jul 2013||Ethicon Endo-Surgery, Inc.||Selectively positionable camera for surgical guide tube assembly|
|US8506564||18 Dec 2009||13 Aug 2013||Ethicon Endo-Surgery, Inc.||Surgical instrument comprising an electrode|
|US8529563||25 Aug 2008||10 Sep 2013||Ethicon Endo-Surgery, Inc.||Electrical ablation devices|
|US8539672||29 Sep 2011||24 Sep 2013||Zevex, Inc.||Method for improving accuracy in a peristaltic pump system based on tubing material properties|
|US8551043||23 Apr 2007||8 Oct 2013||C. R. Bard, Inc.||Feeding device and bolster apparatus and method for making the same|
|US8568410||25 Apr 2008||29 Oct 2013||Ethicon Endo-Surgery, Inc.||Electrical ablation surgical instruments|
|US8579897||21 Nov 2007||12 Nov 2013||Ethicon Endo-Surgery, Inc.||Bipolar forceps|
|US8604742||11 May 2012||10 Dec 2013||Board Of Regents Of The University Of Nebraska||Robotic devices with arms and related methods|
|US8608652||5 Nov 2009||17 Dec 2013||Ethicon Endo-Surgery, Inc.||Vaginal entry surgical devices, kit, system, and method|
|US8652150||30 May 2008||18 Feb 2014||Ethicon Endo-Surgery, Inc.||Multifunction surgical device|
|US8679003||30 May 2008||25 Mar 2014||Ethicon Endo-Surgery, Inc.||Surgical device and endoscope including same|
|US8679096||26 Nov 2008||25 Mar 2014||Board Of Regents Of The University Of Nebraska||Multifunctional operational component for robotic devices|
|US8715244||7 Jul 2010||6 May 2014||C. R. Bard, Inc.||Extensible internal bolster for a medical device|
|US8771260||30 May 2008||8 Jul 2014||Ethicon Endo-Surgery, Inc.||Actuating and articulating surgical device|
|US8828024||19 Dec 2011||9 Sep 2014||Board Of Regents Of The University Of Nebraska||Methods, systems, and devices for surgical access and procedures|
|US8828031||12 Jan 2009||9 Sep 2014||Ethicon Endo-Surgery, Inc.||Apparatus for forming an anastomosis|
|US8834488||21 Jun 2007||16 Sep 2014||Board Of Regents Of The University Of Nebraska||Magnetically coupleable robotic surgical devices and related methods|
|US8834505||2 Mar 2012||16 Sep 2014||Applied Medical Resources Corporation||Tamponade trocar device and method|
|US8858533||29 Jun 2005||14 Oct 2014||C. R. Bard, Inc.||Methods and systems for providing fluid communication with a gastrostomy tube|
|US8888792||14 Jul 2008||18 Nov 2014||Ethicon Endo-Surgery, Inc.||Tissue apposition clip application devices and methods|
|US8894633||17 Dec 2010||25 Nov 2014||Board Of Regents Of The University Of Nebraska||Modular and cooperative medical devices and related systems and methods|
|US8906035||4 Jun 2008||9 Dec 2014||Ethicon Endo-Surgery, Inc.||Endoscopic drop off bag|
|US8906051||6 Mar 2012||9 Dec 2014||Apollo Endosurgery, Inc.||Methods and systems for performing submucosal medical procedures|
|US8911467||6 Mar 2012||16 Dec 2014||Mayo Foundation For Medical Education And Research||Methods and systems for performing submucosal medical procedures|
|US8929988||11 Jul 2007||6 Jan 2015||Apollo Endosurgery, Inc.||Methods and systems for submucosal implantation of a device for diagnosis and treatment of a body|
|US8939897 *||4 Feb 2011||27 Jan 2015||Ethicon Endo-Surgery, Inc.||Methods for closing a gastrotomy|
|US8951277||21 Aug 2014||10 Feb 2015||Applied Medical Resources Corporation||Tamponade trocar device and method|
|US8968267||5 Aug 2011||3 Mar 2015||Board Of Regents Of The University Of Nebraska||Methods and systems for handling or delivering materials for natural orifice surgery|
|US8968332||21 Jun 2007||3 Mar 2015||Board Of Regents Of The University Of Nebraska||Magnetically coupleable robotic surgical devices and related methods|
|US8974440||15 Aug 2008||10 Mar 2015||Board Of Regents Of The University Of Nebraska||Modular and cooperative medical devices and related systems and methods|
|US8986199||17 Feb 2012||24 Mar 2015||Ethicon Endo-Surgery, Inc.||Apparatus and methods for cleaning the lens of an endoscope|
|US9005198||29 Jan 2010||14 Apr 2015||Ethicon Endo-Surgery, Inc.||Surgical instrument comprising an electrode|
|US9010214||15 Mar 2013||21 Apr 2015||Board Of Regents Of The University Of Nebraska||Local control robotic surgical devices and related methods|
|US9011431||4 Sep 2012||21 Apr 2015||Ethicon Endo-Surgery, Inc.||Electrical ablation devices|
|US9028441||7 Sep 2012||12 May 2015||Corpak Medsystems, Inc.||Apparatus and method used with guidance system for feeding and suctioning|
|US9028483||18 Dec 2009||12 May 2015||Ethicon Endo-Surgery, Inc.||Surgical instrument comprising an electrode|
|US9049987||15 Mar 2012||9 Jun 2015||Ethicon Endo-Surgery, Inc.||Hand held surgical device for manipulating an internal magnet assembly within a patient|
|US9060781||11 Jun 2012||23 Jun 2015||Board Of Regents Of The University Of Nebraska||Methods, systems, and devices relating to surgical end effectors|
|US9078662||3 Jul 2012||14 Jul 2015||Ethicon Endo-Surgery, Inc.||Endoscopic cap electrode and method for using the same|
|US9089353||11 Jul 2012||28 Jul 2015||Board Of Regents Of The University Of Nebraska||Robotic surgical devices, systems, and related methods|
|US9131956||2 Jun 2011||15 Sep 2015||Corpak Medsystems, Inc.||Tubing assembly and signal generator placement control device and method for use with catheter guidance systems|
|US9179981||10 Mar 2014||10 Nov 2015||Board Of Regents Of The University Of Nebraska||Multifunctional operational component for robotic devices|
|US9220526||20 Mar 2012||29 Dec 2015||Ethicon Endo-Surgery, Inc.||Rotational coupling device for surgical instrument with flexible actuators|
|US9226772||30 Jan 2009||5 Jan 2016||Ethicon Endo-Surgery, Inc.||Surgical device|
|US9233241||18 Jan 2012||12 Jan 2016||Ethicon Endo-Surgery, Inc.||Electrical ablation devices and methods|
|US9254169||28 Feb 2011||9 Feb 2016||Ethicon Endo-Surgery, Inc.||Electrical ablation devices and methods|
|US9277957||15 Aug 2012||8 Mar 2016||Ethicon Endo-Surgery, Inc.||Electrosurgical devices and methods|
|US9302031||22 Nov 2011||5 Apr 2016||Cook Medical Technologies Llc||Tubular drainage device|
|US9302090 *||25 Jul 2012||5 Apr 2016||Applied Medical Technology, Inc.||Photoluminescent coupling|
|US9314620||28 Feb 2011||19 Apr 2016||Ethicon Endo-Surgery, Inc.||Electrical ablation devices and methods|
|US9339442||26 Sep 2011||17 May 2016||Avent, Inc.||Multi-balloon dilation device for placing catheter tubes|
|US9375268||9 May 2013||28 Jun 2016||Ethicon Endo-Surgery, Inc.||Electroporation ablation apparatus, system, and method|
|US9403281||7 Nov 2013||2 Aug 2016||Board Of Regents Of The University Of Nebraska||Robotic devices with arms and related methods|
|US9427255||14 May 2012||30 Aug 2016||Ethicon Endo-Surgery, Inc.||Apparatus for introducing a steerable camera assembly into a patient|
|US9492644||21 Dec 2012||15 Nov 2016||Avent, Inc.||Dilation device for placing catheter tubes|
|US9498292||15 Mar 2013||22 Nov 2016||Board Of Regents Of The University Of Nebraska||Single site robotic device and related systems and methods|
|US9545290||30 Jul 2012||17 Jan 2017||Ethicon Endo-Surgery, Inc.||Needle probe guide|
|US9554970||25 Feb 2016||31 Jan 2017||Applied Medical Technology, Inc.||Photoluminescent coupling|
|US9572623||2 Aug 2012||21 Feb 2017||Ethicon Endo-Surgery, Inc.||Reusable electrode and disposable sheath|
|US9572751||5 May 2014||21 Feb 2017||C. R. Bard, Inc.||Extensible internal bolster for a medical device|
|US9579088||28 Dec 2007||28 Feb 2017||Board Of Regents Of The University Of Nebraska||Methods, systems, and devices for surgical visualization and device manipulation|
|US9579488||14 Sep 2015||28 Feb 2017||Corpak Medsystems, Inc.||Tubing assembly and signal generator placement control device and method for use with catheter guidance systems|
|US9592044||9 Feb 2012||14 Mar 2017||C. R. Bard, Inc.||T-fastener suture delivery system|
|US9682224||6 Oct 2014||20 Jun 2017||C. R. Bard, Inc.||Method and systems for providing fluid communication with a gastrostomy tube|
|US9700677||29 Sep 2014||11 Jul 2017||Excelsior Medical Corporation||Antiseptic cap with antiseptic|
|US9707325||2 Dec 2011||18 Jul 2017||Cook Medical Technologies Llc||Drainage system with occlusion member|
|US9743987||13 Mar 2014||29 Aug 2017||Board Of Regents Of The University Of Nebraska||Methods, systems, and devices relating to robotic surgical devices, end effectors, and controllers|
|US9757187||22 Jun 2015||12 Sep 2017||Board Of Regents Of The University Of Nebraska||Methods, systems, and devices relating to surgical end effectors|
|US20010049497 *||23 Mar 2001||6 Dec 2001||Kalloo Anthony Nicolas||Methods and devices for diagnostic and therapeutic interventions in the peritoneal cavity|
|US20030163119 *||26 Feb 2002||28 Aug 2003||Chu Michael S.H||Medical catheter assembly including a removable inner sleeve and method of using the same|
|US20040103518 *||30 Nov 2002||3 Jun 2004||Triebes Thomas Gregory||Process for securing a tip member to a catheter during production of the tip member|
|US20040103987 *||30 Nov 2002||3 Jun 2004||Triebes Thomas Gregory||Process for producing unitary component and a catheter having a unitary component|
|US20040106899 *||30 Nov 2002||3 Jun 2004||Mcmichael Donald J.||Gastric balloon catheter with improved balloon orientation|
|US20040106901 *||30 Nov 2002||3 Jun 2004||Letson William W.||Catheter having a balloon member invertedly attached thereto|
|US20050004540 *||30 Jun 2004||6 Jan 2005||Mcnally David J.||Low-profile enterostomy device|
|US20050171481 *||28 Mar 2005||4 Aug 2005||Delegge Rebecca||Gastric access port|
|US20060052752 *||9 Sep 2004||9 Mar 2006||Kimberly-Clark Worldwide, Inc.||Artificial stoma and method of use|
|US20060079850 *||24 Sep 2004||13 Apr 2006||Adams Mark L||Safety Y-port adaptor and medical catheter assembly including the same|
|US20060116637 *||30 Nov 2004||1 Jun 2006||Kimberly-Clark Worldwide, Inc.||Tract measuring device having a unitary occluded tip and inflatable sock member and method of making the same|
|US20060116658 *||30 Nov 2004||1 Jun 2006||Kimberly-Clark Worldwide, Inc.||Multi-lumen stoma measuring device and method for using same|
|US20060135950 *||21 Dec 2004||22 Jun 2006||Gomez Matthew A||Supra pubic catheter|
|US20060206095 *||8 May 2006||14 Sep 2006||Chu Michael S||Medical catheter assembly including a removable inner sleeve and method of using the same|
|US20060229653 *||22 Mar 2006||12 Oct 2006||Wilk Patent, Llc||Intra-abdominal medical method and associated device|
|US20060276746 *||6 Jun 2006||7 Dec 2006||C.R. Bard, Inc.||Feeding Device Including Balloon Tip and Method of Manufacture|
|US20070093775 *||20 Oct 2005||26 Apr 2007||Sherwood Services Ag||Connector for enteral fluid delivery set|
|US20070112368 *||17 Nov 2006||17 May 2007||Applied Medical Resources Corporation||Method for using a trocar with inflatable seal for transstomal endoscopic procedures|
|US20070255209 *||23 Apr 2007||1 Nov 2007||C.R. Bard, Inc.||Feeding device and bolster apparatus and method for making the same|
|US20070276356 *||29 Jun 2005||29 Nov 2007||C. R. Bard, Inc.||Methods And Systems For Providing Fluid Communication With A Gastrostomy Tube|
|US20080125796 *||28 Nov 2007||29 May 2008||Stryker Development Llc||Gastrotomy closure device|
|US20080312495 *||12 Jun 2007||18 Dec 2008||Mcwilliams Dennis L||Method of Performing Transgastric Abdominal Surgery|
|US20090054909 *||11 Jul 2008||26 Feb 2009||Board Of Regents Of The University Of Nebraska||Methods and systems of actuation in robotic devices|
|US20090082736 *||17 Nov 2008||26 Mar 2009||Delegge Rebecca||Gastric access port|
|US20090112183 *||5 Nov 2008||30 Apr 2009||C. R. Bard, Inc.||Medical devices and methods of use|
|US20090216186 *||26 Feb 2009||27 Aug 2009||Nath Iyunni Venkata Sesha Sayi||Feeding tube|
|US20090264913 *||21 Apr 2008||22 Oct 2009||Applied Medical Resources Corporation||Tamponade trocar device and method|
|US20100217151 *||15 Jan 2010||26 Aug 2010||Zach Gostout||Methods and Systems for Performing Submucosal Medical Procedures|
|US20110028896 *||12 Oct 2010||3 Feb 2011||C.R. Bard, Inc.||Feeding device including balloon tip and method of manufacture|
|US20110071474 *||14 Sep 2010||24 Mar 2011||Tyco Healthcare Group Lp||Organ Fixture and Gastric Fistula Catheter Set|
|US20110124964 *||4 Feb 2011||26 May 2011||Ethicon Endo-Surgery, Inc.||Methods for closing a gastrotomy|
|US20110152874 *||21 Dec 2009||23 Jun 2011||Cook Critical Care Incorporated||Balloon dilational chest tube method and system|
|US20110196341 *||9 Feb 2011||11 Aug 2011||C. R. Bard, Inc.||Deflation indicator for a medical device bolster|
|US20140031754 *||25 Jul 2012||30 Jan 2014||Applied Medical Technology, Inc.||Photoluminescent coupling|
|US20140031755 *||3 May 2013||30 Jan 2014||Applied Medical Technology, Inc.||Photoluminescent coupling|
|US20140180326 *||20 Dec 2012||26 Jun 2014||Empire Technology Development Llc||Inflatable balloon for protecting blood vessel|
|US20150119934 *||29 Oct 2014||30 Apr 2015||Entourage Medical Technologies, Inc.||System for providing surgical access|
|CN101181181B||30 Nov 2007||15 Jun 2011||马博平||Nutrient canal of intestine for reducing pressure of stomach|
|CN101257884B||31 May 2006||4 May 2011||库利艾特梅迪克株式会社||导管及导管套件|
|CN103124533A *||27 Sep 2011||29 May 2013||金伯利-克拉克环球有限公司||Multi-balloon dilation device for placing catheter tubes|
|CN103124533B *||27 Sep 2011||15 Feb 2017||阿文特公司||用于放置导管的多气囊扩张装置|
|CN103298421A *||27 Sep 2011||11 Sep 2013||金伯利-克拉克环球有限公司||Dilation device for placing catheter tubes|
|CN103298421B *||27 Sep 2011||16 Mar 2016||阿文特公司||用于放置导管的扩张装置|
|WO1999002216A1||14 Jul 1998||21 Jan 1999||Delcath Systems, Inc.||Novel apparatus and method for isolated pelvic perfusion|
|WO2011084313A1||8 Dec 2010||14 Jul 2011||Cook Critical Care Incorporated||Balloon dilational chest tube method and system|
|WO2012042475A1 *||27 Sep 2011||5 Apr 2012||Kimberly-Clark Worldwide, Inc.||Multi-balloon dilation device for placing catheter tubes|
|WO2012042476A1 *||27 Sep 2011||5 Apr 2012||Kimberly-Clark Worldwide, Inc.||Dilation device for placing catheter tubes|
|U.S. Classification||604/103.13, 604/910|
|International Classification||A61M31/00, A61M25/02, A61J15/00|
|Cooperative Classification||A61J15/0007, A61J15/0061, A61J15/0073, A61M25/02, A61M2025/0233, A61J15/0042, A61J15/0015, A61M2025/0273|
|European Classification||A61J15/00G, A61J15/00P1A1A, A61M25/02|
|29 Jul 1997||CC||Certificate of correction|
|16 Apr 1999||FPAY||Fee payment|
Year of fee payment: 4
|30 Dec 2002||AS||Assignment|
Owner name: BALLARD MEDICAL PRODUCTS, UTAH
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MEDICAL INNOVATIONS CORPORATION;REEL/FRAME:013608/0442
Effective date: 20021219
|28 Mar 2003||FPAY||Fee payment|
Year of fee payment: 8
|20 Mar 2007||FPAY||Fee payment|
Year of fee payment: 12
|11 Sep 2007||AS||Assignment|
Owner name: KIMBERLY-CLARK WORLDWIDE, INC., WISCONSIN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BALLARD MEDICAL PRODUCTS, INC.;REEL/FRAME:019805/0150
Effective date: 20070910